Flush siphon



Feb 8 1927- s. s. WILLIAMSON 'FLUSH sIPHoN ets-Sheet 1l QZ Filed April6, 1922 Patented Feb. 8, 1927.

VvUNITED STATES SAMUEL S. WILLIAMSON, 0F PHILADELPHIA, PENNSYLVANIA,ASSIG-NOR TO MARYP.

WILLIAMSON, 0F PHILADELHIA, PENNSYLVANIA. 1

Y 1 Application ledApril 6,

My invention relates to new and -useful lmprovements in flush siphons,and has for its object to provide a simple and leffective device of thisdescription which maybe readily secured kwithin a flush tank and be sooperated as to draw the water therefrom' ydown to a given level andVthen automatically shut off and remaining inactive until the water hasreached a given Vhigh level within the tank before it canA be againput'into action. v e l A still furtherobject of my invention is toprovide/a dasher for giving the water an initial lift or throw whichwill carry a certain amount thereof from the short leg of the Siphon tolthe long leg thereof to start` the siphonic action, said dasher beingsokcon' structed andarranged that it will swing from two centers.v e i Astill further object of myinv'ention -is to so construct a siphon thatit may be cast of a single piecevinclu'ding the spud' and dash chamber.Y With these ends inview', this invention consists in the details vof:construction and combination Vof elements hereinafter set vforth andthen .specifically designated by the claims.

In order that those skilled in the art to`V Fig. 4, is a section atthe'line 4-4 ofv Fig. 1.

` Fig. 5, Yis a diagram showing the second position to which the dasheris swung when operated to put the siphon in action.

Fig. 6, is a view similar'to' Fig. 5 showing.

the dasher in itsthirdpositionwhich it assumes after Athe siphonicaction' has been V started and the lift lever released.

Fig. 7, is aview similar-to Fig. 5 showing the dasher in the fourthposition whichit approximately assumes while `water is flowingh at lessthan fullgcapacity throughthe `slp on. v

Fig. 8, isan enlarged bottnm Vplan view of hereinafter explained.

1922. serial No. 550,086.

i e y 1,617,295

PATE i i washer placed between it and the bottom of the tankto preventleakageat that point. With the upper portion of the spud is cast thelong leg 3 of the siphon and this leg is curved the innervwall thereofdescribing a circle from a center which coincides with the pivot point 4of thedasher for the purpose hereinafter set forth.

` The upper portion ofthe leg' 3 of the Siphon extends upward'at anangle'tofthe curved portion thereof and isv enlarged to form the chokepocket 5` with which the short leg 6 communicates, said short leg beingcast throughout its length'integral with the long leg and has formed"thereiny the dashercompartment 7 in which the dasher 8 is adapted toswing.

T9 represents an offset4 formed withthe frontwallof the shortk leg 7andthe upper wallV of. t-hisl offset is inclined as indicated at k10 toform a crotchin which the heel 11 of the/dasher may seat and whichalsoprovides y the pivot point 4 upon which the'heel of the A, dasherrocks.v 'f fThe dasher Skis preferably made of a single piece ofsheetmetal yhaving the portion j12 thereof 'bent backward upon itselfand terminating in' a' semi-circular housing 13 1n whlchthee'nds 14 ofthe wire bail 15 are pivoted. Thisl bail 15 hasthel downwardly extendingsections 16] intended to extend within the vdasher compartmentl 7,the"sec Y tions 17 intended to extend Cupwardly 'upon the outside jefthe siphon and these last namedfsections arev connected by theyhorizontal sections 18 with the loop` 19 bymeans of whichfthe bail maybeattached to the lift lever 2O through a suitable link 21.

i 22 represents a st op to limit the downward swinging movement of thedasher and 23 are flanges for limitingthe downward sliding movementV of'said dasher for the'y purpose When the sphon is 'properly placed with-Vi 24 .projecting from the front wall of the. .siphon and the dasher willhang in the position shown in Fig. l, the heel thereof bearing upon thepivot point 4 and the. weight ofY Said dasher being supported by thebail it being preferable that the outer end of the dasher does-notcontact with .the stopI 22.

When the handle or other operating mechanism is actuated to elevate thelift lever 2() the bail will be drawn upward which movement will swingthe dasher vupon the pivot point lifting the water within thecompartment 7 and Vi'orcing the .same from the. high water levelindicated'in Fig.v 1 through theV crown over the upper edgeoittliepartition 25 thus suddenly filling the choke pocket 5 which willstart the -siphonic action at the point of outlet Vfromsaidpocket andthis initial: siphonic action willcontinue to `draw water from the tankuntil the longleg has been filled and the water flowing downwardthroughVv the same. is choked at. the pointv ;26 by the sudden change oflthe direction Aof flow before entering the Spud. When-this has, beenAaccomplished. the siphonicy action will continue until the level of;the .waterin the tankfalls below the .mouth of the short leg .or theopening to lthe compartment 7 when any entrance. of, air at this mouthwill automaticallybreak the siphonic action.

Whenthedasher is swung romthe position shown in Fig. l tothepositionshownin Fig.= 5 by-the .litingof the bail as just. ,describedthe Flow of the Vwater upward through vthe compartment? willholdsaid/dasherin a verticalposition,but thereleaseof the lift levervwill permit vsaiddasher to slidedownward :whileremainingrin thisvertical position until the heel thereof comes in contact with theflanges 23, as shown in Fig. 6, `when the further downward movement ofthe bail willcause the. dasher to assume lapproximately .the positionshownin Fig. 7 where it will remain ,untilthe V'Siphonio actionV hasVceased when .it will'swingfto the position of normal rest shown in Fig.l.

The purpose of, this, swinging of the Vdasher upontwo A.centers andthesliding downward thereof is. to permit to return to its normalxposition of vrest without undueresistance of the water throughwhich'itmust pass and further to provide for .ase cond, third orgreater numberofactuati'ons of said dasher for. starting the siphonic action should.thetirst actuationof said dasher lnot Ybring aboutthe flow of water totheufull capacity .of the siphon as :tor instance should the firstactuation of the dasher deliver only suicient water to the. chokepocket., 5 to start the siphonic action to a less degreey than the fullcapacity of the siphon the release of. the liftflever will.' permit thedasher to assume the position shown in Fig. 7 and it the flow ofwaterthrough the siphon say is `one-half jitscapacity the. outer end' of. the

dasherwvill swing-.to a relatively low position so that by againactuating the lift lever the heel of the dasher will be drawn into theflow.V This; operation may befrepeated as often as iiecessary toestablishthis' full flow. In practice I prefer rto make the interior otthe siphon of greater uf'idtlrthan the interor ot vthe. spud so that as.the column ot water 'flowing downward through tlie'jloug leg 3 reachesthe point of entrance .to the spud it will be crowded toward the centertogainaccess to saidspud thus making an effectual choke at this point.which I have 'found by experiment greatly Iincreases the sensitivenessof the siphonY thereby'increasingL the readiness with V'which thesiphonic action takes place and. continues.

The inclinedwall of the crotch lO'serves to effect the properseatingof'the heel of the dasher upon .itslpivot `point,'whenthe dasherswings vfrom the .position shown in Fig. 7 tothe positiongshown in/Fig.l; by causingtheV heel of -said dasher to slide up said incline therebypreventingf. the outer edge of said dasher from contactingwith orbearinglagainst the curved'wall of thefcompartment 7.A

Of course I do not wish to be limited to the exact details ofconstruction asherein shown as these may be varied Vwithin thek limitsof Vthe appended'claims without .departing` from the spirit of. myinvention.

Having rthus fully described my invention, `what I claim as new anduseful y'isi-fl. In a siphon of the' character described, a u long kleg`and a .short `leg cast integralgthe wall;gdividingjthe interior of saidle'gsbeing curved to .form a dasher compartment,v a dasher slldablypivoted within said comllO partinent so that 'when swung upward itsouter .edgevill travelin close proximity to said curved wall,V and whenreleased 'will slide downward while maintained in its vertical position,and meansfor swingingV the heel of said dasher toits normal pivot pointat a predetermined point in its downward movement.,v l Y A 2. In asiphonoi the'character described, a. dasher compartment having. a curved wall,

a pivot. point, atnthecenter of ythe curvature of said wall,a dasher theheel of. which is adapted to rock upon said vpivot-point means forswinging said dasher upwardv to a. vertical position, and when released.will slide downward while` remainingin avertical position, and meansfor'swinging said dasher from out of its vertical position at apredetermined point in its downward movement.

3. In combination with a siphon of the character described, a dasherconsisting of a .single piece of sheet metal, a. portion of 5.v A' flushsiphon having dasher compartn'ient in which are located two 'l'ulcruinpoints, one above the other, and a dasher so suspended as to lbe capableof an upward swinging movement about one ulcrum point, an endwisemovement toward the second fulcrum point, a downward swinging movementabout said second ulcruin point and a teeter movement to return it tothe iirst mentioned fulcrum point.

6. E or use in a flush Siphon having a dasher compartment, a dasherfulcrumed in saidV compartment, vand a. bail pivoted'to said dasher,said .baill lextending downwardly from the dasher to below the yloweredges of theV dasher compartment two .sections of the bail turningrA inU-shape around said' edges, and then extending upwardly outside of saidcompartment 1to11 Vconnection with the actuating mechanism.

7. A Vflush Siphon including a long and a short leg with a dashercompartment in the latter, a dasher pivoted intermediate its lengthproviding long and short free ends, means within the dasher compartmentto provide two separate ulcrum points for the shorter lend whereby saiddasher will swing about one fulcrum during its upward movement andaboutthe other during its downward movement, said vdasher swinging on itspoint after a portion of its downward movementv has been made. 1

In testimony whereof, I have hereunto affixed my signature. f

SAMUEL s. WILLIAMSON.

